# Keysight N9323C Basic Spectrum Analyzer, 1 MHz to 13.6 GHz # Keysight N9323C Basic Spectrum Analyzer, 1 MHz to 13.6 GHz ## Key Features At A Glance - Frequency range of 1 MHz to 13.6 GHz with 1 Hz frequency resolution - Standard LAN (100Base-T), USB host/device, and Mini-USB interfaces; GPIB (IEEE-488) available as Option G01 - Displayed average noise level to –150 dBm with preamp on (10 MHz–3 GHz, normalized to 1 Hz) - Resolution bandwidth from 10 Hz to 3 MHz in a 1-3-10 sequence - Four traces with normal, peak, sample, and average (video/RMS/voltage) detectors - Optional 15 dB preamplifier (Option P13) covering 1 MHz to 13.6 GHz - Overall amplitude accuracy of ±1.3 dB, 1 MHz to 7 GHz (20–30 °C, preamp off, –50 to 0 dBm) - 6.5-inch 640 x 480 display with 64 MB internal storage and USB memory support The Keysight N9323C is a basic spectrum analyzer covering a frequency range of 1 MHz to 13.6 GHz with 1 Hz frequency resolution. It is a bench RF instrument that measures signal amplitude across the frequency domain through an AC-coupled input, presenting results on a 6.5-inch 640 x 480 display with a four-trace measurement architecture. A spectrum analyzer displays the amplitude of input signals as a function of frequency, letting an engineer see a signal's spectral content—carrier level, harmonics, spurious products, and noise. The N9323C supports power-suite measurements including channel power, ACPR, and occupied bandwidth (OBW), and CISPR-compliant EMI bandwidth measurements of 200 Hz, 9 kHz, 120 kHz, and 1 MHz are available with Option EMC. ValueTronics stocks and holds its own inventory in a 20,000 square foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. ## Brand Heritage Keysight Technologies traces its test-and-measurement heritage to Hewlett-Packard, whose instrument business was spun off as Agilent Technologies in 1999. Agilent's electronic measurement business then became Keysight Technologies in 2014, the brand under which this analyzer is produced. ## Product Core & Specifications Specification Value Frequency and Time Frequency range 1 MHz to 13.6 GHz (AC coupled) Frequency resolution 1 Hz Frequency reference nominal frequency 10 MHz Aging rate (Option PFR) ± 1 × 10-7/Year Aging rate (Standard) ± 1 × 10-6/Year Temperature stability (Option PFR, 20°C to 30°C) ± 1.5 × 10-8 Temperature stability (Option PFR, 5°C to 45°C) ± 5 × 10-8 Temperature stability (Standard, 5°C to 45°C) ± 1 × 10-6 Achievable initial calibration accuracy (Option PFR) ± 4 × 10-8 Achievable initial calibration accuracy (Standard) ± 1 × 10-6 Marker resolution (frequency span)/(number of sweep point -1) Frequency readout uncertainty ± (freq indication × freq reference uncertainty + 1% × span + 20% × resolution bandwidth + marker resolution + 1 Hz) Sweep point 461, fixed Marker frequency counter resolution 1 Hz Marker frequency counter accuracy ± \[(marker freq × freq reference uncertainty) + (counter resolution)\], RBW/Span ≥ 0.02 Marker level to displayed noise level \> 25 dB, frequency offset = 0 Hz Frequency Span (FFT and swept mode) Range 0 Hz (zero span), 100 Hz to 13.6 GHz Resolution 1 Hz Accuracy ± (0.22% × span + span/(sweep point −1)), nominal Sweep Time and Triggering Sweep time range (Span ≥ 100 Hz) 2 ms to 1000 s Sweep time range (Span = 0 Hz) 600 ns to 200 s (minimum resolution = 600 ns, when RBW ≥ 30 kHz) Mode Continuous, Single Sweep time rule Accuracy or Speed Trigger Free run, video, external, RF burst Trigger slope Selectable positive or negative edge Trigger delay (Span = 0 Hz) ± 12 ms to ± 12 s, nominal Resolution Bandwidth (RBW) Range (-3 dB bandwidth) 10 Hz to 3 MHz, in 1-3-10 sequence Accuracy ± 5%, nominal; < 10% when RBW = 3 MHz Resolution filter shape factor < 5:1, nominal (60 dB/3 dB bandwidth ratio, digital, Gaussian-like) EMI bandwidth (CISPR compliant, Option EMC required) 200 Hz, 9 kHz, 120 kHz, 1 MHz EMI bandwidth accuracy ± 10%, nominal EMI resolution filter shape factor < 5:1, nominal (-60 dB/-6 dB bandwidth ratio) Video Bandwidth (VBW) Range 1 Hz to 3 MHz, in 1-3-10 sequence Accuracy ± 10%, nominal (VBW = 1 Hz to 1 MHz) Amplitude Measurement range (1 MHz to 500 MHz, preamp off) Displayed average noise level (DANL) to +10 dBm Measurement range (500 MHz to 13.6 GHz) Displayed average noise level (DANL) to +20 dBm Input attenuator range 0 to 50 dB, in 5 dB steps Maximum damage level (average continuous power) +30 dBm, 3 minutes maximum (input attenuator ≥ 20 dB, 1 MHz to 13.6 GHz) Maximum damage level (DC voltage) ± 50 VDC maximum Level display scale units dBm, dBmV, dBμV, W, V, dBmV EMF, dBμV EMF, V EMF Marker level readout (Log scale) 0.01 dB Marker level readout resolution (Linear scale) < 1% of signal level Number of traces 4 Detectors Normal, positive peak, sample, negative peak, average (video, RMS, voltage), quasi-peak (option EMC required) Trace function Clear/write, maximum hold, minimum hold, average Frequency Response (Attenuation 20 dB, reference frequency 50 MHz, typical) 1 MHz to 50 MHz ± 0.3 dB 50 MHz to 4 GHz ± 0.4 dB 4 GHz to 7 GHz ± 0.45 dB 7 GHz to 13.6 GHz ± 0.6 dB Amplitude Accuracy Input attenuation switching uncertainty at 50 MHz (1 to 50 dB) ± 0.2 dB, typical (relative to 20 dB reference setting) Resolution bandwidth switching uncertainty (10 Hz to 3 MHz RBW) +0.1 dB, typical Absolute amplitude accuracy at 50 MHz ± 0.3 dB Absolute amplitude accuracy at all frequencies ± (0.3 dB + frequency response) Overall amplitude accuracy (1 MHz to 7 GHz) ± 1.3 dB Overall amplitude accuracy (7 GHz to 13.6 GHz) ± 1.6 dB Preamplifier (Option P13) Frequency range 1 MHz to 13.6 GHz Gain 15 dB, nominal Displayed Average Noise Level (Normalized to 1 Hz | Minimum RBW; RMS detector, average > 40, 0 dB attenuation, input terminated 50 Ω, RBW = 1 kHz, 20 to 30 °C) Preamp off, 1 to 10 MHz \-125 dBm, typical -140 dBm | Minimum RBW: -115 dBm, typical -130 dBm Preamp off, 10 MHz to 3 GHz \-137 dBm, typical -142 dBm | Minimum RBW: -127 dBm, typical -132 dBm Preamp off, 3 to 7 GHz \-135 dBm, typical -140 dBm | Minimum RBW: -125 dBm, typical -130 dBm Preamp off, 7 to 10 GHz \-139 dBm, typical -142 dBm | Minimum RBW: -129 dBm, typical -132 dBm Preamp off, 10 to 13.6 GHz \-137 dBm, typical -140 dBm | Minimum RBW: -127 dBm, typical -130 dBm Preamp on, 1 to 10 MHz \-140 dBm, typical -156 dBm | Minimum RBW: -130 dBm, typical -146 dBm Preamp on, 10 MHz to 3 GHz \-150 dBm, typical -154 dBm | Minimum RBW: -140 dBm, typical -144 dBm Preamp on, 3 to 6 GHz \-145 dBm, typical -150 dBm | Minimum RBW: -135 dBm, typical -140 dBm Preamp on, 6 to 13.6 GHz \-151 dBm, typical -155 dBm | Minimum RBW: -141 dBm, typical -145 dBm Spurious Response Second harmonic distortion (50 MHz to 7 GHz) < -65 dBc, typical < -70 dBc Second harmonic distortion (7 to 13.6 GHz) < -80 dBc, typical < -90 dBc Third order intermodulation distortion / TOI (50 to 300 MHz) +8 dBm, typical +9 dBm Third order intermodulation distortion / TOI (300 MHz to 8 GHz) +9 dBm, typical +11 dBm Third order intermodulation distortion / TOI (8 to 13.6 GHz) +10 dBm, typical +12 dBm Input related spurious < -60 dBc, typical < -70 dBc Residual response (1 MHz to 7 GHz) < -95 dBm, typical -110 dBm Residual response (7 to 13.6 GHz) < -85 dBm, typical -93 dBm Phase Noise (20 to 30 °C, center frequency = 500 MHz) 10 kHz offset Typical −92 dBc/Hz 30 kHz offset −86 dBc/Hz, typical −89 dBc/Hz 100 kHz offset −97 dBc/Hz, typical −99 dBc/Hz 1 MHz offset −115 dBc/Hz, typical −119 dBc/Hz Inputs and Outputs — Front Panel RF input connector N-type female, 50 Ω, nominal VSWR (1 MHz to 7 GHz) < 1.5:1, nominal, ≥ 10 dB attenuation VSWR (7 to 13.6 GHz) < 2:1, nominal, ≥ 10 dB attenuation Calibration output amplitude −25 ± 0.25 dBm Calibration output frequency 40 MHz Calibration output connector and impedance BNC-type female, 50 Ω, nominal Probe power +15 V, 150 mA maximum; −12.6 V, 150 mA maximum > **Important:** Maximum damage level: +30 dBm average continuous power (3 minutes maximum, input attenuator ≥ 20 dB, 1 MHz to 13.6 GHz) and ±50 VDC maximum. > **Important:** The recommended calibration cycle is one year. Calibration services are available through Keysight service centers. > **Important:** Option PWM (USB average power sensor support) and Option PWP (USB peak and average power sensor support) require a compatible Keysight U2000 / U2020 / U2042/44 X-Series USB power sensor; the power sensor is not part of the analyzer. > Usage tip: with Option PWM or PWP installed, the N9323C supports Keysight U2000 Series and U2020/U2042/U2044 X-Series USB power sensors for direct USB power measurements. ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 25054.0 USD - **Vendor:** Keysight - **Type:** Spec An - **Tags:** Analyzers, Keysight, Keysight Technologies, Manufacturers, product_manual_group_3, Product_new, Spectrum ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 25054.00 USD | In stock | ## Images - N9323C Keysight Technologies Spectrum Analyzer --- > Source: [ValueTronics](https://valuetronics.com/products/n9323c-keysight-spectrum-analyzer-new) > Updated: 2026-06-20